Nutella's website is awful. I don't even see an email address. I know they are peanut safe. I have given it to my oldest with PA, but has there been any info that they are also free of treenut contamination (besides Hazelnut)?
DS13 passed almond and we've been approved to challenge hazelnut, pistachio and cashews. I have Nutella in the cupboard, but I'm afraid to use it until I can gather more info. DS is off the charts to peanut and likely allergic to walnut/pecan as well.
ETA - pretty amused with myself...apparently last year I started a thread on this topic as well

It must have been when I was adding it into my DS15's diet! However, as he had never had a tree nut allergy, just peanut, I was less concerned!